An electron beam is shot through 2 thin slits with spacing 4.000 x 10-6 m and land on adetector 2.50 m away. The detector is 1.00 cm wide. You observe that the spacing ofinterference fringes is 8.25 x 10-6 m.(a) What is the wavelength of the electrons?(b) What is the momentum of the electrons?(c) What is the uncertainty in the momentum? (Hint: assume that the uncertainty inposition is the width of the detector.)

a) The electron’s wavelength can be determined as, Here, D, f, ꞵ, and λ represent the screen’s…

(a) What is the wavelength of the electrons? (b) What is the momentum of the electrons? (c) What is the uncertainty in the momentum? (Hint: assume that the uncertainty in position is the width of the detector.)

(a) What is the wavelength of the electrons? (b) What is the momentum of the electrons? (c) What is the uncertainty in the momentum? (Hint: assume that the uncertainty in position is the width of the detector.)

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter5: Matter Waves

Section: Chapter Questions

Problem 20P

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